effect-ts-folds/src/fix/fix.d.ts

Recursion schemes for effect-ts.

import { Either as EI } from 'effect';
import { Kind, TypeLambda } from 'effect/HKT';
export interface Fix<F extends TypeLambda, E = unknown, R = unknown, I = never> {
    unfixed: Unfixed<F, E, R, I>;
}
export type Unfixed<F extends TypeLambda, E = unknown, R = unknown, I = never> = Kind<F, I, R, E, Fix<F, E, R, I>>;
export declare const fix: <F extends TypeLambda, E = unknown, R = unknown, I = never>(unfixed: Unfixed<F, E, R, I>) => Fix<F, E, R, I>;
export declare const unfix: <F extends TypeLambda, E = unknown, R = unknown, I = never>(fixed: Fix<F, E, R, I>) => Unfixed<F, E, R, I>;
/**
 * `TypeLambda` for the higher-kinded type `[Fix<F, E, R, I>, A]` used in
 * `RAlgebra`.
 * @category recursive
 */
export interface ProductTypeLambda<F extends TypeLambda> extends TypeLambda {
    readonly type: [
        Fix<F, this['Out1'], this['Out2'], this['In']>,
        this['Target']
    ];
}
/**
 * `TypeLambda` for the higher-kinded type `Either<A, Fix<F, E, R, I>>` used in
 * `RCoalgebra`.
 * @category recursive
 */
export interface SumTypeLambda<F extends TypeLambda> extends TypeLambda {
    readonly type: EI.Either<this['Target'], Fix<F, this['Out1'], this['Out2'], this['In']>>;
}
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